diff --git a/db.php b/db.php
index 3724300..d2d92a5 100644
--- a/db.php
+++ b/db.php
@@ -5,7 +5,6 @@
  *   wordpress/wp-content/db.php
  * 
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  *
  */
diff --git a/functions-5-2.php b/functions-5-2.php
index 6867473..62a8be3 100644
--- a/functions-5-2.php
+++ b/functions-5-2.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  *
  */
diff --git a/functions.php b/functions.php
index 8cb715c..7337b2c 100644
--- a/functions.php
+++ b/functions.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  *
  */
diff --git a/install.php b/install.php
index 3f48dbf..86293b5 100644
--- a/install.php
+++ b/install.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  *
  */
diff --git a/languages/sqlite-integration-ja.mo b/languages/sqlite-integration-ja.mo
index a5db75e..8ab001b 100644
Binary files a/languages/sqlite-integration-ja.mo and b/languages/sqlite-integration-ja.mo differ
diff --git a/languages/sqlite-integration-ja.po b/languages/sqlite-integration-ja.po
index 2c6c093..25a2de3 100644
--- a/languages/sqlite-integration-ja.po
+++ b/languages/sqlite-integration-ja.po
@@ -211,12 +211,12 @@ msgid ""
 "SQLite for its database. But PDO for WordPress doesn't seem to be maintained "
 "any more only to be outdated. SQLite Integration makes use of the basic ideas "
 "and framework of PDO for WordPress, adds some new features and updates it to "
-"be able to work with the newest version of WordPress(3.5.1 and 3.6 beta)."
+"be able to work with the newest version of WordPress(3.5.2 and 3.6 beta)."
 msgstr ""
 "このプラグインは<a href=\"http://wordpress.org/extend/plugins/pdo-for-wordpress/\">"
 "PDO for WordPress</a>の後継です。PDO for WordPressはWordPressでSQLiteを使えるようにする"
 "ものでしたが、もうメンテナンスされていないようで、古くなってしまいました。SQLite Integrationは、その基本的な"
-"考えと枠組みを使って、新たな機能を追加し、最新のWordPress(3.5.1および3.6ベータ)で動作するように"
+"考えと枠組みを使って、新たな機能を追加し、最新のWordPress(3.5.2および3.6ベータ)で動作するように"
 "したものです。"
 
 #: utilities/documentation.php:44
@@ -589,8 +589,8 @@ msgstr "パッチを適用しました。"
 
 #: utilities/patch.php:94 utilities/patch.php:121
 #, php-format
-msgid "Error! Messages: %s"
-msgstr "エラー。メッセージは: %s"
+msgid "Error! File %s is not deleted."
+msgstr "エラー。ファイル%sは削除できませんでした。"
 
 #: utilities/patch.php:118
 msgid "Error!: patches directory is not accessible."
diff --git a/languages/sqlite-integration.pot b/languages/sqlite-integration.pot
index c736014..6f6c3bb 100644
--- a/languages/sqlite-integration.pot
+++ b/languages/sqlite-integration.pot
@@ -195,7 +195,7 @@ msgid ""
 "SQLite for its database. But PDO for WordPress doesn't seem to be maintained "
 "any more only to be outdated. SQLite Integration makes use of the basic ideas "
 "and framework of PDO for WordPress, adds some new features and updates it to "
-"be able to work with the newest version of WordPress(3.5.1 and 3.6 beta)."
+"be able to work with the newest version of WordPress(3.5.2 and 3.6 beta)."
 msgstr ""
 
 #: utilities/documentation.php:44
@@ -505,7 +505,7 @@ msgstr ""
 
 #: utilities/patch.php:94 utilities/patch.php:121
 #, php-format
-msgid "Error! Messages: %s"
+msgid "Error! File %s is not deleted."
 msgstr ""
 
 #: utilities/patch.php:118
diff --git a/pdodb.class.php b/pdodb.class.php
index 7f0816f..3f342b9 100644
--- a/pdodb.class.php
+++ b/pdodb.class.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  *
  */
diff --git a/pdoengine.class.php b/pdoengine.class.php
index 6064e2f..03f7183 100644
--- a/pdoengine.class.php
+++ b/pdoengine.class.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  *
  */
diff --git a/query.class.php b/query.class.php
index 738e5bf..2cb8236 100644
--- a/query.class.php
+++ b/query.class.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author  Kojima Toshiyasu, Justin Adie
  */
 
diff --git a/query_alter.class.php b/query_alter.class.php
index 5061546..cd0f814 100644
--- a/query_alter.class.php
+++ b/query_alter.class.php
@@ -3,7 +3,6 @@
  * The class for manipulating ALTER query
  * newly supports multiple variants
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu
  */
 class AlterQuery {
diff --git a/query_create.class.php b/query_create.class.php
index 6e41e2c..c2c7bd7 100644
--- a/query_create.class.php
+++ b/query_create.class.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  */
  
diff --git a/readme-ja.txt b/readme-ja.txt
index 5d7ca86..88a40cf 100644
--- a/readme-ja.txt
+++ b/readme-ja.txt
@@ -160,16 +160,23 @@ wp-config.phpの準備が終わったら、次のステップに進みます。
 
 たぶん、もっとあるでしょう。
 
-== Changelog ==
-
-= 1.1 (2013-07-24) =
-* DROP INDEX 単独のクエリが動作していなかったのを修正しました。
-* shutdown_hook で descructor を実行していたのをやめました。
-* LOCATE() 関数を使えるようにしました。
-
-= 1.0 (2013-07-07) =
-最初のリリース。
 
 == Upgrade Notice ==
 
 SQLite Integrationのアップグレードに失敗するようなら、FTPを使っての手動アップグレードを試してみてください。
+
+== Changelog ==
+
+= 1.2 (2013-07-30) =
+* Windows マシンでパッチファイルが削除できなかったのを修正しました。
+* パッチファイルをアップロードするときに textdomain のエラーが出るのを修正しました。
+* ON DUPLICATE KEY UPDATEをともなったクエリの処理を変更しました。
+* readme.txt と readme-ja.txt の間違いを直しました。
+
+= 1.1 (2013-07-24) =
+* DROP INDEX 単独のクエリが動作していなかったのを修正しました。
+* shutdown_hook で destruct() を実行していたのをやめました。
+* LOCATE() 関数を使えるようにしました。
+
+= 1.0 (2013-07-07) =
+* 最初のリリース。
diff --git a/readme.txt b/readme.txt
index c8c56bb..c4ad780 100644
--- a/readme.txt
+++ b/readme.txt
@@ -152,16 +152,22 @@ These are other examples:
 
 Probably there are more, I'm afraid.
 
+== Upgrade Notice ==
+
+When auto upgrading of SQLite Integration fails, please try manual upgrade via FTP.
+
 == Changelog ==
 
+= 1.2 (2013-07-30) =
+* Fixed the patch utility program for using on the Windows machine.
+* Fixed the textdomain error in utilities/patch.php file when uploading the patch file.
+* Changed the manipulation of the query with ON DUPLICATE KEY UPDATE.
+* Fixed the typos in readme.txt and readme-ja.txt.
+
 = 1.1 (2013-07-24) =
 * Fixed the manipulation of DROP INDEX query.
-* Removed desctructor() from shutdown_hook.
+* Removed destruct() from shutdown_hook.
 * Enabled LOCATE() function in the query string.
 
 = 1.0 (2013-07-07) =
-First release version of the plugin.
-
-== Upgrade Notice ==
-
-When auto upgrading of SQLite Integration fails, Please try manual upgrade via FTP.
+* First release version of the plugin.
diff --git a/schema.php b/schema.php
index 185ee0a..6ea9508 100644
--- a/schema.php
+++ b/schema.php
@@ -1,7 +1,6 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
  * @author Kojima Toshiyasu, Justin Adie
  */
 
diff --git a/utilities/documentation.php b/utilities/documentation.php
index 8fe9f7b..0a946e7 100644
--- a/utilities/documentation.php
+++ b/utilities/documentation.php
@@ -1,8 +1,7 @@
 <?php
 /**
  * @package SQLite Integration
- * @version 1.1
- * @author Toshiyasu Kojima
+ * @author Kojima Toshiyasu
  *
  */
 /**
@@ -38,7 +37,7 @@ class SQLiteIntegrationDocument {
     
     <h3><?php _e('Features', $domain);?></h3>
     <p>
-    <?php _e('This plugin is a successor to <a href="http://wordpress.org/extend/plugins/pdo-for-wordpress/">PDO for WordPress</a>, which enabled WordPress to use SQLite for its database. But PDO for WordPress doesn\'t seem to be maintained any more only to be outdated. SQLite Integration makes use of the basic ideas and framework of PDO for WordPress, adds some new features and updates it to be able to work with the newest version of WordPress(3.5.1 and 3.6 beta).', $domain); ?>
+    <?php _e('This plugin is a successor to <a href="http://wordpress.org/extend/plugins/pdo-for-wordpress/">PDO for WordPress</a>, which enabled WordPress to use SQLite for its database. But PDO for WordPress doesn\'t seem to be maintained any more only to be outdated. SQLite Integration makes use of the basic ideas and framework of PDO for WordPress, adds some new features and updates it to be able to work with the newest version of WordPress(3.5.2 and 3.6 beta).', $domain); ?>
     </p>
     <p>
     <?php _e('<a href="http://www.sqlite.org/">SQLite Web Page</a> says &mdash; SQLite is a &quot;software library that implements selfcontained, serverless, zero-configuration, transactional SQL database engine&quot;. It is &quot;a good choice for small to medium size websites&quot;. It\'s small and portable, and you don\'t need any database server system.', $domain); ?>
diff --git a/utilities/patch.php b/utilities/patch.php
index d359289..40c2159 100644
--- a/utilities/patch.php
+++ b/utilities/patch.php
@@ -3,7 +3,7 @@
  * This file contains PatchUtils class
  * 
  * @package SQLite Integration
- * @since 1.1
+ * @author Kojima Toshiyasu
  *
  */
 class PatchUtils {
@@ -34,6 +34,8 @@ class PatchUtils {
    * @return boolean|array
    */
   private function apply_patches() {
+  	global $utils;
+  	$domain = $utils->text_domain;
     $installed_plugins = array();
     $file_names = array();
     $output = array();
@@ -103,6 +105,8 @@ class PatchUtils {
    * @return boolean|array
    */
   private function delete_patch_files() {
+  	global $utils;
+  	$domain = $utils->text_domain;
     $file_names = array();
     $rm_results = array();
     if (isset($_POST['plugin_checked'])) {
@@ -110,18 +114,16 @@ class PatchUtils {
     } else {
       return false;
     }
-    $command = 'rm -f';
-    foreach ($file_names as $file) {
-      if (chdir(SQLitePatchDir)) {
-        exec("$command $file", $output, $retval);
-      } else {
-        $rm_results[$file] = __('Error!: patches directory is not accessible.', $domain);
-      }
-      if ($retval > 0) {
-        $rm_results[$file] = sprintf(__('Error! Messages: %s', $domain), $output);
-      } else {
-        $rm_results[$file] = sprintf(__('File %s is deleted.', $domain), $file);
-      }
+    if (chdir(SQLitePatchDir)) {
+    	foreach ($file_names as $file) {
+    		if (unlink($file)) {
+    			$rm_results[$file] = sprintf(__('File %s is deleted.', $domain), $file);
+    		} else {
+    			$rm_results[$file] = sprintf(__('Error! File %s is not deleted.', $domain), $file);
+    		}
+    	}
+    } else {
+    	$rm_results[$file] = __('Error!: patches directory is not accessible.', $domain);
     }
     return $rm_results;
   }
@@ -130,6 +132,8 @@ class PatchUtils {
    * No return values.
    */
   private function upload_file() {
+  	global $utils;
+  	$domain = $utils->text_domain;
     if (!file_exists(SQLitePatchDir) || !is_dir(SQLitePatchDir)) {
       mkdir(SQLitePatchDir, 0705, true);
     }
diff --git a/utilities/utility.php b/utilities/utility.php
index a122b2d..14ed133 100644
--- a/utilities/utility.php
+++ b/utilities/utility.php
@@ -2,7 +2,7 @@
 /**
  * 
  * @package SQLite Integration
- * @author kjm
+ * @author Kojima Toshiyasu
  *
  */
 class SQLiteIntegrationUtils {